Samuel b



S. B. GOFP.

SHIPS PRoPULsIoN.

lPentelltad'Tune 3, 1890.

ATTO RN EY.

UNITED STATES PATENT OEEICE.

SAMUEL B. GOEE, or CAMDEN,NEW JERSEY.

SHIP PROPULSION.

SPECIFICATION forming part of Letters Patent No. 429,438, dated June 3, 1890. Application filed November l1I 1889. Serial No. 329,903. (No model.)

To all whom. it mag/concern,.-

Be it known that I, SAMUEL B. GOFF, a citizen of the United States, residing in the city and county of Camden, State of New Jersey, have invented a new and useful Improvement in Ships Propulsion, which improvement is fully set forth in the following specification and accompanying drawings.

My invention relates to apparatus for propelling boats and it consists in the employment of a stern-wheel and screw-propeller actuated by mechanism located in the boat, the latter having plungers of novel formation coacting with awell formed in the stern part of the said boat.

Figure l represents a side elevation of a boat embodying my invention 'and showing the stern-frame or Wheel-box broken away. Fig. 2 represents a top plan view of the same. Figs. 3 and 4 represent the plunger and part of the well broken away. Fig. 5 represents a lnodication of the plunger.

Similar letters and numerals of reference indicate corresponding parts in the several figures.

Referring to the drawings, A designates a boat at the after portion, below the water-line of which are formed ports B, communicating with water-Ways C, having gates D, operated by screws E or other means, to shut off the ingress of water thereinto. The said waterways are arranged in line 'with openings F in a centrally-disposed well G, terminating at the open part of the stern of the boat. This well consists of a closed elongated box having a forward and a rear top opening H merging into an opening J of greater transverse extent to form shoulders or projections K, for a purpose hereinafter described.

On an uprightLis mounted aworking-beam M, to which are secured jointed drive-rods N. Solid plungers P, of sector contiguratiomare connected to the lower ends of the said driverods N and move through the openings H, as fully shown in Figs. 3 and 4. Paddles Q are pivotally attached to the sides of the plungers P, and are constructed with upper angular projections R, adapted to strike the shoulders or projections K to tilt the same, as shown in Fig. 4. A forked Working-beam S is fulcrumed on an upright T, located at the stern of the rear of the stern. cured on shaft U', and on the ends of said the chain belts W and WV'.

boat,- and the stem thereof is attached to one of the rods N, and the forks engage and are dle-wheel shaft U', supported ata distance in A paddle-wheel V is seshaft, outside of said paddle-wheel, are affixed pulleys V', over which run chain belts NV andV W'. The belt W is a straight belt and belt W' a cross-belt.

Short shafts l are held by suitable means 'in rear of the stern and forward of the rudder, having pulleys 2 thereon, traversed by Said shafts also carry bevel-gears 3 and 4 at their inner ends, meshing with a similar gear 5v for operating thepropeller-shaft, upon which is keyed a propeller 6. A double power is given to the propeller-shaft by the belts W and W'. It is obvious that if both of said belts were straight the said propellershaft would be locked against movement by the gears 3 and 4 running in opposite directions, and hence it is necessary to employ the cross-belt W'.

The paddle-wheel V is operated by suitable manual power or otherwise, as will be readily understood. By causing a revolution of said paddle-Wheel thedrive-rods N are vertically reciprocated through the forked beam S. -Ateach descent of the plungers P the water is forced rearwardly through the well G, and a current thereby established which tends to impel the boat forward, and also strikes the propeller-blades and aids to increase the time of revolution thereof; On the descent of the plungers P the paddles Q are thrown rearward, as shown in Fig. 4, and also increase the momentum of the current in box G and the speedof' the boat. This motive power used in connection with the paddle-wheel V and propeller 6 greatly facilitates the rapid propulsion of the boat or vessel to which the improvement is applied. Upon the ascent of the plungers the Water-supply is decreased in volume in the well G. By the descent of the said plungers it is instantly increased through ports B and a uniform volume sustained therein.

When desired, the gates D can be shut down andthe inflow to the well G thereby cut off.

The water-ways C and well G will be cov- ICC ered by a suitable tloorin g or deck, an d. all the mechanism described is preferably situated in the stern of the boat.

As shown in Fig. 5, the plungers are modified by having connected thereto a box 9, open at the bottom, to work against the Water, and in this instance the holes in the Well G will be increased in size to allow this form of the plunger' to Work thercthrougl'l.

Having thus described my invention, What I claim as new, and desire to secure by Letters Patent, is-

l. ln an apparatus for the propulsion of boats, the combination of a Well located in the boat, extending to and having an open end adjacent to the stern of the boat, alternatelyoperating plungers Working in said Well to draw the water thereinto and force it out of the same, a paddle-wheel at the stern of the boat, a propeller located between said paddle-Wheel and the stern of the boat, adjacent to the said open end of the Well, and means for operating said parts, substantially as described.

2. In an apparatus for the propulsion of boats, the combination of a Well located in the boat, extending to and having an open end adjacent to the stern of the boat, alternatelyoperating; plungers having side paddles Working in 'said Well, a paddle-Wheel at the stern of the boat, a propeller between the said paddle-Wheel and the stern of the boat, adjacent to the said open end of the Well, Workingbeams for operating the plungers and paddlewheel, and chain belts connecting the paddle-wheel and propeller, substantially as described.

3. In an apparatus for the propulsion of boats, the combination of a Well located in said boat, extending to and having an open end adj acentto the stern of theboat, and having side ports opened and closed by vertically-adjustable gates, vertically-reciprocating plungers working in said Well, a paddle-Wheel at the stern of the boat, having pulleys and cams in connection therewith, a propeller between the paddle-wheel and stern of the boat, adjacent to the said open end of the Well, workingbeams for operating said plungers and paddleWheel and engaging the cams of the latter, and chain belts connecting said paddle- Wheel and propeller, substantially as doscribed.

4. In an apparatus for propelling boats, a propeller at the stern of the boat, a water-well located in the boat in line with the propeller and having its rear opening adjacent to said propeller, plungers located above and operating in said Well to force the water against the propeller, and Working-beams for operating said plungers, substantially as described.

SAMUEL B. GOFF.

Witnesses:

C. S. l-IYER, JOHN A. WIEDERSHEIM. 

